%0 Journal Article
%T COMBINED CREEP-FATIGUE BEHAVIOUR OF A 12Cr1MoV STEEL USED IN POWER PLANTS<br>热电站用12Cr1MoV钢的蠕变-疲劳复合性能
%A WANG Xiang
%A TONG Shihua
%A JIANG Xianmei
%A REN Weiping Institute of Solid State Physics
%A Academia Sinica
%A Hefei Shanghai Power Equipment Research InstituteKONG Qingping Professor
%A <br>王翔
%A 孔庆平
%A 佟世华
%A 江先美
%A 任卫平
%J 金属学报
%D 1988
%I 
%X 本文研究了热电站用12Cr1MoV钢在550℃的蠕变-疲劳复合性能(即循环蠕变性能).实验结果表明,在较高应力幅下,循环蠕变寿命大于纯蠕变寿命,试样断裂以穿晶型为主.在较低应力幅下,循环蠕变寿命小于纯蠕变寿命,试样发生晶间型断裂.根据对断裂试样内部位错组态和晶界状态的透射电镜观察,认为在不同应力幅下分别发生循环强化和循环弱化的原因是:在较高应力下,晶内损伤在循环蠕变的卸载过程中得以部分回复;而在较低应力下,叠加交变应力加速了晶间空洞的形成和连接.
%K 12Cr1MoV steel
%K cyclic creep
%K rupture<br>12Cr1MoV钢
%K 循环蠕变
%K 断裂
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=1A3B72A92E5ACD31CD167FF784716916&yid=0702FE8EC3581E51&vid=B91E8C6D6FE990DB&iid=0B39A22176CE99FB&sid=F24949CFDB502409&eid=4DB1E72614E68564&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=1